a Family of Coleopterous Insects. 665 
capite thoraceque colore fulviori. Pedes longiores, sub- 
tenues, tibiis apice compressis, et utrinque spina minutá 
armatis. Tarsi ut videtur 4-articulati. 
This remarkable species exhibits in its antennz and thorax a 
structure totally unlike that of any other individual in the family. 
At the base of the terminal joint of the former organs we perceive 
two transverse depressions with small corresponding contractions 
on its outer edge, evidently indicative of two basal rudimental 
joints. The singular acute horns which arm the clava of the 
antennz, as well as the rounded anterior margins and acutely 
dilated posterior angles of the thorax with its short transverse 
basal lobe,—similar to that found in the genus Lebia,— will not 
fail to attract the attention. I regret that the only specimen with 
which I am acquainted, and which is contained in the cabinet of 
the British Museum, has unfortunately been pierced through 
the centre of the head, so that I cannot state so accurately as I 
could have wished the formation of the trophi; one of the man- 
dibles, however, which is visible, is slender, acute, and bent at 
the tip. "The maxillary palpi appear to resemble those of this 
genus, and the labial palpi seem (at least as well as I could 
examine them,) shorter than in the typical species, and com- 
posed of three subequal joints. In this uncertainty, therefore, 
I place the species in the present genus with doubt, although 
.from its general appearance, depressed form, and the flatness 
and size of its antenne and thorax, it seems to be referable 
to this rather than to the genus Paussus. The specimen stands 
in the British Museum cabinet under the manuscript name 
of ** Paussus tridenticornis," a name so inappropriate, that I 
have not hesitated to alter it to that employed above, in allu- 
sion to the resemblance which the antenne bear to a small 
military double-tongued banneret. From the manner in whicli 
4q2 the 
